# Initialize San Francisco mapping
map_center_coordinates = (37.7749, -122.4194)
m = folium.Map(location=map_center_coordinates, tiles="Stamen Terrain", zoom_start=12)
# Load the processed graph of San Francisco
trj = Trajectory('../datasets/sanfrancisco.jb')
obj = np.random.choice(list(trj.G.keys()), 6)
# Build five random objectives given one starting point
for i in range(5):
    pth = trj.shortest_path(obj[0], obj[i+1])
    pts = np.asarray([np.asarray(e.split(':')).astype('float')[::-1] for e in pth])
    folium.PolyLine(pts, color="blue", weight=5, opacity=0.5).add_to(m)